Multilink PPP load balance question

[jsdeprey]

Hey all, I have done MLPPP before awhile ago and never really needed to know exactly how it load balanced, Mostly becuase it was a simple 1,2,3,4 full T1's

But does anyone know of a good document or a way to setup MLPPP to use T1's that might have a different number of channels?

For instance, if T1 #1 has 24 full data channels DS0s setup in a MLPPP group and T1 #2 has only 12 DS0s, what will happen?

If it is load balancing via round robin, I would guess when the T1 with 12 channels fills up I will start getting packet loss even though a still have 12 channels of data bandwidth left on the 1st T1? is that correct. I can't find anything about this on the cisco website.

[lisa.hall]

The Distributed Multilink Point-to-Point Protocol (dMLPPP) feature allows you to combine T1/E1 lines in a Versatile Interface Processor (VIP) on a Cisco 7500 series router into a bundle that has the combined bandwidth of multiple T1/E1 lines. This is done by using a VIP MLPPP link. You choose the number of bundles and the number of T1/E1 lines in each bundle.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1830/products_feature_guide09186a0080087955.html